Flora of North America species comparison

1–3(–10), unbranched or sparingly branched distally, weakly to moderately winged, glabrous proximally, glabrous or sparsely hairy distally.

usually 1, branched distally, strongly winged, glabrous proximally, sparsely hairy distally.

glabrous or sparsely hairy;

basal blades oblanceolate to oblong-elliptic, entire;

proximal and mid blades lanceolate to oblong-elliptic, entire;

distal blades linear to lanceolate, entire.

glabrous or sparsely hairy;

basal blades oblanceolate to oblong-elliptic, entire;

proximal and mid blades lanceolate to oblong-elliptic, entire;

distal blades lance-linear, entire.

(6–)10–30 cm, sparsely to moderately hairy.

(6–)9–17(–23) cm, sparsely to moderately hairy.

hemispheric to globoid, 12–20 × (14–)17–22(–25) mm.

globose to depressed globose, 9–15 × 9–17(–19) mm.

14–20, pistillate, fertile;

corollas yellow, 13–25 × 5–10(–12) mm.

0, or 13–15, pistillate, fertile;

corollas yellow, 3.8–10 × 2–4 mm.

250–500(–800+);

corollas yellow proximally, yellow to brown to purple distally, 3–4.4(–4.8) mm, lobes 5.

300–500(–1000+);

corollas yellow proximally, yellow to reddish brown to purple distally, (1.6–)1.9–2.7 mm, lobes 4(–5).

(connate proximally) moderately to densely hairy.

(distinct or connate proximally) moderately hairy.

1–20 per plant, borne singly or in paniculiform arrays.

4–20(–30) per plant, in paniculiform arrays.

1.8–2.4 mm, moderately hairy;

pappi of 6–8 entire, aristate scales 1.3–2.2(–2.7) mm.

1.2–1.9 mm, moderately hairy;

pappi of 5–6 entire, aristate scales 0.4–1 mm.

= 32.

= 58.